Printing machinery



Oct. 8, 1940. A. WEISS PRINTING MACHINERY Filed June 2, 1938 22 g i 5 I;

H XII 10 Sheets-Sheet 1 1' 0 IMQ INVENI'OR.

I ATTORNEYS 70 you/m or A. WEISS PRINTING MACHINERY 10 Sheets-Sheet 2Oct. 8, 1940. I

7 Filed June 2, less Ham/arr INVENTOR.

A. WEISS 2,217,191

PRINTING momma:

Filed June 2, 19:58 10 Shets-Sheet 4 I If Z Z M m 3 1 5 7 m; 9 k g 1 1 AA i 8 wm 8 Oct. s, 1940.

0a. a, 1940. I A, wElss 2,217,191 v PRINTING MACHINERY Filed June 2,1958 10 sheets-sheet 5 INVENTOR. I BY Adolph Wz'JJ W mvv; Ha; wATTORNEYS Oct. 8, 1940. A wg s 2,217,191

PRINTING wmcamrmr" Filed June.2, 1958 10 Sheets-Sheet 6 mmiz WWW WHH

. I I u INVENTOR.

dial/2% Mai/u ATTORNEYS Oct. 8, 1940. A. WEISS PRINTING MACHINERY FiledJune 2. 1938 10 Sheets-Sheet 7 III! I I INVENIOR. Aaalph Well/w j M f IA ATTORNEYS' Oct. 8, 1940. A. wzzss 2,217,191

PRINTING MACHINERY Filed June 2, 1938 1O Sheets-Sheet 8 I NVENT OR.

BY Ado/p72 M911 M MI la L;

M A ORNEYs Oct 8, 1940. A. WEISS 2,217,191

PRINTING MACHINERY v Filed June 2, 1938 lo'shee ts -sheet 9 IN VENTOR.

ATTORNEYS Oct. 8, 1940. A. WEISS PRINTING MACHINERY Filed June. 2, 193810 Sheets-Sheet 10 77' /2 CAM AT'EGUAL 5/ 550 I f AM in .L

(AM AT WWO J 1 4 1 w O 7 PL .V m

M w m .0 a Z 0 w Iii Q444 SPA-0 INVE'NTOR.

Adalpfi Wezwf MMv ATTORNEYS Patented Oct. 8, 1940 UNITED STATES PRINTINGMACHINERY Adolph Weiss, Brooklyn, N. ,Y.,

asslgnor to Champlain Corporation, Garfield, N. J., a colporation of NewYork Application June 2, 1938, Serial No. 211,325

18 Claims. (01. 191-157) This invention relates to rotary intaglioprinting machines, and particularly to improvements in such machines ofthe character disclosed in my Patents Nos. Re. 18,856, 2,014,303,2,055,272, 2,115,376 and 2,133,881.

Among the general objects of this invention are to provide a simplifiedstructure and to provide improved coordination of the sealing, ink-.ing, and cylinder-wiping mechanisms.

Additional objects are to provide wiping and inkingmechanisms ofsimplified structure. Additional and important-objects are to providemeans whereby the length of an impression on a web being printed may bevaried without varying the diameter of the printing cylinder.

Another object is to provide a simple press structure which permits easyand convenient threading of the web, while providing accessibility ofthe press mechanism.

A further object is to provide a simple combination of pressure roller,web-feeding means, and web-cutting mechanism, which enables theseelements to perform dual functions.

Various additional objects will become evident from the followingdisclosure of illustrative embodiments of the invention.

Fig. 1 of the drawings is a partially diagrammatic elevation of a rotaryintaglio printing press embodying the present invention, the view beingfrom the front (i. e. operators side) of the machine.

Fig. 2 is a partially diagrammatic elevation, the view being from therear (1. e. drive side) of the machine.

Figs. 3a and 3b, when matched together by superimposing line AA on lineA'A', constitute a plan view of a portion of the mechanism inpress-opened position. The view shows the pressure roller, theweb-feeding mechanism, and .the web-cutting mechanism, all swung up andback from the printing cylinder.

Figs. 4a and 4b, when matched together by superimposing. line BB on lineB'B', constitute a plan view of the printing roller and associated partsas they would appear after removal of the pressure roller, theweb-feeding mechanism, and the web-cutting mechanism.

When the composite of views 3a, 3b is matched to the composite of viewsla, 4b bysuperimposing line -0 on line C'-C', there is formed a planview of the machine with the cover, pressure roller, web-feedingmechanism, and webcutting mechanism swung into press-opened position.

Fig. 5 is a vertical section of the machine in press-closed position,taken in a plane perpendicular to the printing roller. The direction orview and the general plane of the section is indicated by line 5-5 ofFig. 6. 1

Fig. 6 is a vertical section of the machine i press-closed position,taken in general on line 66 of Fig. 5. I

Fig. '7 is a detail section taken approximately on line l-l of Fig. 6. p

Fig. 8 is a detail section taken approximately on line 88 of Fig. 6.

Fig. 9 is a vertical detail section taken in general on line 9-9 ofFigs. 4a and 4b, the view being supplemented with a dot-dash elevationof certain associated parts that are in front of the plane-of thesection.

Fig. 10 isa vertical detail section taken in general on line |0I 0 ofFigs. 3a and 3b.

Fig. 11 is a vertical detail section taken in general on line H|l ofFig. 1.

Fig. 12 is a diagrammatic view illustrating various modifications andextensions of the invention.

Fig. 13 is an enlarged scale elevation, partially in section, of a phasechange coupling shown in Fig. 12. While this is a structural type ofview,

the figure is supplementary to diagrammatic Fig.

12. Accordingly the illustration of the coupling may be considered asdiagrammatic in its relation to the invention as a whole.

Fig. 14 is a partially diagrammaticelevation of an adjustable cam thatmay be utilized in presses of the present invention.

Figs. 15 to 23, inclusive, are diagrammatic views illustrating some ofthe variations in printing results that can be achieved with pressesembodying the present invention.

General organization This is best seen in Figs. 1, 2, and 6. Front andback plate-like members I and 2 are rigidly tied together and held inparallelism by any suitable means. These members serve as standardswhich support the various elements of the web-feeding mechanism, and theweb-cutting mechanism.

Removably bolted to the front standard I is a cam housing 5. Removablybolted to the rear This is best seen in Fig. 6. The printing cyl- 10inder I9, which has a printing surface 'II, is provided with journalextensions I2 and I2,

having shoulders I3 and I3. Sleeve I5 of cam I6 (which will be discussedlater) is fitted to,

extension I2 and splined thereto by a spline I4.

15 Ball-bearing units I1 and I8 are arranged as shown to rotatablysupport the sleeve I5 without end play.

Bearing unit I! is secured in a bearing cap I8 by means of a retainerring 23 which may 20 (optionally) make a holding friction fit with thebearing cap I9. Carried by the retainer ring 23 is a sealing gland 25which embraces the periphery of the sleeve I5. Also, the retainer ring23 is provided with an integral arcuate exten- 25 sion 24 which projectsinwardly adjacent to the end of the printing cylinder proper;

The bearing cap I9 is fitted into an aperture in the frame standard I;and it is held in place by the coaxially positioned cam housing 5, which30 is bolted to the standard I and which carries bearing unit I8. Thus,the bearing units I1 and I8 are coaxially arranged and are removablysecured to the frame standard I.

At the opposite end of the printing cylinder 35 there is a cam 2|(referred to later) having a sleeve portion 20 which is fitted tojournal extension I2' and splined thereto by a spline I4. Ball bearingunits 22 and 22a are positioned coaxially with bearing units I l and I8,and they 9 Frame standard 2 is provided with a seat which receives thebearing unit 22, and a retainer ring 23 holds the bearing in place inthe same manner that retainer 23 holds bearing I1 45 in place.- Integralwith retainer 23 is an arcuate flange 24' which projects inwardlyadjacent to the end of the printing cylinder proper. Carried by theretainer 23' is a sealing gland 25' which embraces the periphery ofsleeve 28.

Bearing unit 220. is suitably secured in gear housing 4 which is boltedto frame standard 2. At-

tached to, or integral with, the sleeve 20 is a worm 55, which will bereferred to later.

End play of the printing cylinder is prevented by engagement ofshoulders I13 and I3 with the inner ends of sleeves f5 and24respectively, operating clearance being allowed for the free rotation ofthe printing cylinder. The printing cylinder may be removed byunboltingcam housing 5, removing sleeve I5 and its bearings, and thenwithdrawing the printing cylinder from sleeve 26.

. Wiping mechanism The general organization of the wiping mech- 65 anismis best shown in Figs. 5 and 9.

The surface II of the printing cylinder is wiped by a spring steeldoctor knife 26 mounted in a holder 21. This holder comprises lower andupper knife-clamping plates 28 and 29, urged 70 together by screws 3|,3| and 32. Depending from the lower plate 28 is an integral longitudinalfiange 30 which slldingly fits into a longitudinal recess 30a in asuDDDrt 35. Support 35 extends between frame standards I and 2 and isjournalled in them for rocking movement that rotatably support thesleeve 20 without end play.-

will be referred to later. Beneath recess 30a the support 35 is providedwith a longitudinal bore which contains a reciprocatable shaft 33. Shaft33 has a fiat seat which receives the lower face of flange 30; and theblade holder 21 is fixed to 5 shaft 33, being located by dowels 34, 34,and being secured by screw 32.

Rockable support 35 is provided with an end extension 36 (Figs. 9 and l)which projects through frame standard I to the operator's side of themachine. Associated with this extension are means for setting thesupport 35 in different angular positions, for the purpose of therebypositioning doctor knife 26 for engagement with different sizes ofprinting cylinders I9. Also associated with extension 36 are means forbiasing the doctor knife 26 against thesurface of the printing cylinderwith the requisite wiping pressure. These means will now be described.

Pivoted on extension 36 is an adjustment link 31 (Figs. 9, 1 and 40.)having a depending arm 31a and a generally horizontal arm 3'"). Arm 31ahas an arcuate slot 38 (Fig. 1), pierced by a clamping cap screw 59which is threaded into frame standard I. On the lowerend of arm 31a is ascale 49 which cooperates with a stationary index mark on frame standardI. The graduations on scale 49 may indicate desired graduations in thesizes of printing cylinders III; thus,

' link 3'! can be readily located in the angular position correspondingto a selected size of printing cylinder, and be clamped by. screw 50 inthe selected position. The setting of arm 31a. directly determines thesetting of arm 31b which is provided with a hole to receive a pin 39that is instrumental in positioning the doctor knife 26.

Also pivoted on extension 36 is a plunger link 49. At the end of link 40there is a boss 4I (Figs. 4a and 1) which slidably supports the plungerpin 39. Pin 39 may be biased toward link arm 31b by any suitable means,as by a helical spring within boss 4I. Also plunger pin 39 may beprovided with a head 42 (Figs. 4a and 9) for manual withdrawal of thepin from link arm 31b. It will be seen that with plunger pin 39 inengagement with link arm 3'"), link 40 is angularly positioned inaccordance with the setting that has been given to link 31.

Keyed or pinned to the outer end of extension 36 is a pressure link 41having a horizontal arm 48 (Figs. 1 and 4a) This arm is biased upwardlyby a helical spring 44 which projects from a well 43 that is integralwith plunger link 40. An adjustment screw 45 serves to adjust thepressure applied by spring 44. Above arm 48 is a lip 46 which isintegral with plunger link 40. When plunger arm 49 is manually movedclockwise (Fig.

1) lip 46 engages arm 48, thereby imparting corresponding movement tosupport 35 and withdrawing the doctor knife 26 from the printingcylinder I9. When the plunger link 40 is moved in the reverse directionto insert plunger pin 39 into the aperture in link arm 31b, the doctorknife 26 is swung against the surface of the printing cylinder Ill.Before the link 40 has reached the position where pin 38 can beinserted, the

dictor knife has already engaged the surface II of the printing cylinderI9, so that the fi'nal counterclockwise movement (Fig. l) of link 40com-- presses spring 44. Thus, spring 44 biases the doctor knife 26against the printing surface II with the requisite wiping pressure.

The arrangement provides ready access to the printing surface, andprovides for easy' adjustment of the doctor knife when a printing,cylin- 15 der of different size is to be installed in the machine.After other parts have been moved out of .39 inserted in the socket inlinkarm 3117.

When the, machine is in operation, the doctor knife 26 is reciprocatedlongitudinally of the printing cylinder. This reciprocation is efiectedby imparting a corresponding back-and-forth.

longitudinal movement to shaft 33. The mechanism for reciprocating shaft83 is seen in Figs. 9, 4b, 2,and 8.

A reciprocatory slide 54 (Fig. 8) has an arm 53 which is attached atright angles to shaft 33.

This attachment (Figs. 9 and 4b) is made at the end portion of shaft 33,which projects beyond frame standard 2. This end portion of the shaft 33pierces arm 53, and is reduced in diameter to provide a shoulder 5|which abuts against one face of arm 53. Against the opposite face of arm53 is a collar 52 which is pinned to shaft 33.

Slide 54 has guideway bearing portions 52, 82 (Fig. 8) which arereciprocatabl'e in guideways that are formed by angles 83, 63 incooperation with wall portions of gear housing 4. The back of slide 54is formed with spaced vertical faces 8|, 8| (see also Fig. 9) betweenwhich is a roller 80 that is mounted on a stud 59. Stud 59 iseccentrically located on a disc 58, so that as the disc rotates, areciprocatory motion is imparted to slide 54. The reciprocatory motionof slide 54 is, of course, imparted to shaft 33, and thence to thedoctor knife 28. Y

Disc 58 receives its rotation from shaft 51 to which it is attached.Splined to shaft 51 is a worm gear 56 (see also Fig. 6) which is drivenby the worm 55 of sleeve 20, which receives the rotation of the printingcylinder l0. Thus, rotation of the printing cylinder effectsreciprocation of the doctor knife 215. It will also be noted that thereciprocation of shaft 33 in no way interferes with the rocking ofsupport 35 by movement of knob 42, and vice versa.

As shown in Figs. 5, 4a, 4b, and 9, the support 35 carries a removablepressure apron 65 which has a bent nose portion 88 in engagement withthe upper surface of doctor knife:26. This nose 56 deflects the doctorknife downwardly from its unstressed position, as more fully explainedin my United States Patent No. 2,014,303, issued September 10, 1935. Inthat patent the pressure apron reciprocates with the doctor knife, butin the construction herein shown it does not. Accordingly the apron 85,or the nose thereof, is preferably made of bronze or other suitablehearing material; and the same applies to strip 81. As shown in Fig. 9,the apron 85 extends from frame standard I to frame standard 2, exceptthat sufficient clearance is allowed for the apron to move between thestandards when support 35 is rocked.

On the forward edge of support 35 (Fig. 5) is a sealing blade 61securedby a clamp 68; A

similar sealing blade is shown and fully explained September.22, 1936.

I back from the printing cylinder.

86. corresponds to pressure link 41; and link 88 In]: system An inkreservoir 10 (Figs. 5 and 6) is pivotally attached to frame standard Iat 11 (Fig. 1) and to frame standard 2 at 12 (Figs. 2 and 5). -Integralwith the reservoir is a perforated lug 14 (Figs. 11, 5 and 6) which ispierced by a spring pressed plunger 13 to hold the reservoir in theoperating position shown in the drawings. By withdrawing plunger 13, thereservoir 10 can be readily swung downwardly to give access to iinterior, e. g. for cleaning.

The pivotal connection at 12 is made hollow to permit the passage of theink through a swivelly connected conduit 15 (Fig. 2) to the intake portof a circulating pump 16. The discharge portof the pump is connected bya pipe 11 .to an inking manifold 18, from which the ink is dischargedthrough an elongated port 82 onto the printing surface II. The pump isdriven through sprocket 81, connected by chain 89 to sprocket 88 (Fig.6) which rotates with the printing cylinder l0.

The inking manifold 18 is in sealing engagement with the frame standardsI and 2; and it is pivotally mounted so that it can be rocked away fromthe printing cylinder, in much the same way that the doctor knife 28 isrocked back. Above the discharge port 82, the manifold is provided witha long sealing strip 83 which is in sealing engagement with the printingcylinder 10 when the manifold is in operating position.

As best seen in Fig. 10, the inking manifold has a hollow pivot studwhich pierces frame standard 2. From this stud a swivel joint pipeconnection is made to conduit 11, so that the ink can pass to themanifold bore 8| while permitting the manifold to be rocked in itspivots. At the other end the manifold has an extension 19 which projectsthrough frame standard I.

Associated with extension 19 are parts (a) by which the manifold isbiased to springpress sealing strip 82 against the surface of theprinting cylinder, (b) by which adjustment is made for different sizesof printing cylinders, and (c) by which the manifold can be rocked backaway from the printing cylinder. These parts are similar to those forcorrespondingly adjusting the doctor knife; and they operate in the sameway. Link 84 (Figs. 10 and 3a) which has perpendicular arms 84a and 84b(Figs. 3a. and 1) corresponds to link 31 with its perpendicular arms 31aand 31b; and link 84 may be set in the different positions required fordifferent sizes of printing cylinders. Plunger link 85 corresponds toplunger link 40; and by withdrawing spring pressed plunger 85a (Figs. 3aand 1) and swinging it downwardly, the inking manifold is rockedPressure link is rotatively biased by spring 85b to press the sealingstrip 83 (Fig. 5) against the printing cylinder.

In operation ink is drawn from reservoir 10 by pump 18 and forced to theinking manifold 18 from which it is continuously delivered throughnozzle 82 in the form of a ribbon which extends the length of theprinting surface ll. Except for the depressed areas in surface II whichhold the ink that is to be applied to the web, the entire surface ll ofthe printing cylinder is wiped clean by doctor knife 26; and the surplusink falls back into reservoir 10. When it is desired to drain the inkreservoir, drain cock (Fig. 2) is opened with the pump 18 in operation.

Seal iny system To prevent any substantial evaporation of the volatileingredients of the printing ink, the ink is kept me. sealed system fromwhich only such ink is removed as is to be applied to the web beingprinted. In accordance with certain objects of the invention, variousoperating .parts of the press also act as portions of the sealedinclcsure for the ink. The boundaries of the sealed systemwill beexplained by first tracing the boundary in a plane perpendicular to theprinting roller, and then showing the boundariesin directions lengthwiseof the printing cylinder- Referring to Fig. 5, the boundary of thesealed system will be traced in a clockwise direction, starting withprinting cylinder Id. The doctor knife 26 seals the printing cylinder tostrip 6'5, which in turn carries the seal to support 35. Upwardly bowedspringy strip 92 seals support 35 to one edge of'ink reservoir i. Theother edge of the ink reservoir is sealed by bowed springy strip 9| toinking manifold '38. And the inking manifold is sealed to the printingcylinder by strip 83. Since support 35 and manifold I8 are swung intodifferent positions for different sizes of printing cylinders, they areprovided with arcuate surfaces 9 3 and 95 concentric with theirrespective pivotal axes, which, in the different positions,appropriately engage sealing strips 92 and 9|, respectively.

Each of the elements referred to in the preceding paragraph is sealedendwise to the frame standards I and 2 as will now'be described.

The endwise sealing of the printing roller to standard .I is asubstantial duplication of its endwise sealing to standard 2.Accordingly, only the sealing to standard I will be described, referencebeing had primarily to Fig. 6.

The arcuate flange 23 of retainer 23 has its outer surface at a radiusequal to the radius of e the smallest printing cylinder for which themachine is designed. Thus, the outer surface of flange 24 constitutes astationary extension of printing surface II when the smallest printingcylinder is being used. For larger printing cylinders, the outersurfaceof flange 24 is, in efiect, appropriately increased in radius by aremovable segment 93. The a'rcuate length of flange 24 (and segment 93)is sufi cient to extend beyond sealing strips 61 and 83 (Fig. so thatthose strips make sealing engagement with the outer surface of flange 24(or segment 33). The doctor knife 26 also makes sealing engagement withthe surface of flange 24 (or segment 93), and in reciprocating it doesnot completely leave the flange (or segmenth Thus, sealing strip 61 canhave its edge relieved thrughout the axial length of printing surface II, so that it does not engage the printing surface, which is sealed bythe doctor knife 26.

The end of the printing cylinder I0, and the free end of flange 24 (and,segment 93) -are accurately ground so that the flange 24 (and segment93) make a sealing fit with the end of the printing cylinder. Framestandard I is insealing engagement with bearing cap I9, which in turn,is in sealing engagement with the periphery of retainer 23. The innersurface of retainer 23 is sealed by gland 25 to sleeve I5; and sleeve I5is in sealing engagement with Journal extension I2. Thus, it will beseen that the printing cylinder is sealed endwise to frame standard I;and it is correspondingly sealed to frame standard 2.

The ends of sealing strips 67, 83, SI, and 92 are all accurately fittedagainst flat ground surfaces of standards -I and 2, so as to make sealeing fits therewith while permitting slidingmovement of the strip endswith respect to the standards I and 2. The ends of support 35 andmanifold I8 arelikewise fitted and sealed to standards I and 2. The endwalls lea, Illa, (Figs. 5 and 6) of the ink reservoir 10 have curvedbosses 'ii'Ib, IIlb which make sealing engagement with standards I and2. Each of these bosses has a flat ground face, so engaging a flat faceon the .standard as to permit the pivotal downward movement of thereservoir for cleaning.

It will be seen that various operating .parts of the machine have beenutilized as part of the sealing system without impairing their primaryfunctions. This has been accomplished with convenience and simplicity;and the sealed system has been adapted for various applicational neem,

some of which will be discussed later.

Web supply mechanism This is best seen i Figs. 1, 2, 5, and 6. A shaftI3I carries a roll of web I30, which roll is telescoped onto the shaftand clamped thereto in any suitable manner. One end of the shaft I3I isjournaled in the bottom of an inclined slot I3Ia. (Fig. 2) in framestandard 2. The other end of shaft I3I is journal ed in the bottom of aninclined s1ot.I3Ib (Fig. 1) in frame standard I. As shown in Fig. 6 theshaft I3I is provided adjacent to its ends with shoulders I3 I0, I Mewhich prevent excessive end play of the shaft. The upper end of slot I3)is enlarged as shown so that, when the shaft is lifted upwardly, oneshoulder I3Ic can be pushed into the enlargement and the shaft cantedand removed for replacement-of roll Keyed to shaft I3I is a gear I32which, when the shaft is in place, meshes with a gear I33. Gear I33 isfixed on a stub shaft to which is also flxed a brake drum I34 locatedoutside of stand ard 2. Pivoted to standard 2 is a brake I35 (Fig. 2)having a lining I36 which is urged against th brake drum by spring I38.-I

A shaft I39 isjournaled-in frame standards I and 2 and extends outsideof each of them. Afflxed to this shaft, just inside of standards I and 2are links I40, I40. These links carry a. weight roller I 4I underwhichthe web I45 passes, as shown in Fig. 5. When the web is pulled to set itin motion, the inertia of supply roll I30 does not have to beinstantaneously overcome, as roller I M rises thereby making a certainlength of the web available to the printing mechanism. Continued pullingof the web, or the weight of roll I 4|, or both, act to pull the webfrom the supply roll. As this happens, roll I descends and moves shaftI39 counterclockwise as viewed in Fig. 2. Such movement of shaft I39causes cam I44 to engage, and increasingly apply pressure to, rollerI31. This increases the retarding pressure of brake I35 until thedownward movement of roller MI is checked by a balanced condition havingbeen reached.

Afilxed to shaft I39 on the operators side of the machine is a link I42,provided with an adjust-able counterweight I43 by which the weight I I85when set by spring I38 alone. Supplementary braking pressure that isparticularly needed on larger supply-roller diameters is supplied by camIll. Thus, the eifective weight of roller IlI determines the tension atwhich the web is delivered to the printing mechanism.

Pressure roller, and guiding and feeding mechanis'ms These parts arecompactly arranged inside of the hinged cover 3. With the cover open,all of these elements may be readily moved out of the way to give accessto the printing cylinder, inking manifold, and doctor knife assembly;and restoration is accomplished by simply swinging the parts intooperating position and closing and latching the cover. I

With conventional rotary initaglio printing presses, the length of theprinting cylinder impression is equal to the peripheral length of theprinting cylinder. Length of the printing cylinder impression or lengthof the impression, means the length of web which passes the printingcylinder during one complete printing cycle, without regard to whetheror not the printed design occupies the entire length of the impression,and without regard to whether the printing cycle involves one, more thanone, or less than one revolution of the printing cylinder. As previouslypointed out herein, my invention provides for the insertion of printingcylinders of different sizes to vary the length of the printing cylinderimpression. Additionally, I provide means (referred to later) wherebyimpressions of diiferent lengths may be made from the same printingcylinder; and this has important industrial applications.

Pressure roller III (Figs. 5 and 6) is journalled in ball bearing unitsMI and I02. These bearings are mounted respectively in similar links I00and IN (see also Figs. 3a. and 3b) which are pivoted to shaft 8 thatalso forms the pivot for cover 3. The free ends of links I00 and IOI'are tied together by bridge I09 (Figs. 5, 3a. and 3b) so that thealignment of bearings IM and I02 is maintained. In operating positionthe axis of the pressure roller is located approximately directly abovethe axis of the printing cylinder, as shown in Fig. 5.

Links I00 and I00 are provided respectively with L-shaped extension lugsI03 and I03 (Fig. 6), to which are amxed studs I0l and I0l' for rollersI05 and I05. These rollers are adapted to cooperate respectively withcams I6 and 2| that are driven synchronously with the printing cylinder.When it is desired to produce printing cylinder impressionscorresponding in length to the peripheral length of the printingcylinder, cams I6 and 2I are so made or set as to not affect the linksI00 and I00 on which the pressure roller is mounted. When it is desiredto produce printing cylinder impressions of lengths less than theperipheral length of printing cylinder I0, cams I6 and 2I are providedwith active sectors corresponding to that portion of the periphery ofprinting cylinder I0 which is to be omitted from the length of theimpression. Thus, the web is fed and printed throughout the inactivezone of cams I6 and 2I; but in the active zone of the cams, pressureroller I I I and the web are elevated .and the printing cylinder I0rotates idly without the web being advanced.

In operation the printing cylinder I0 is power driven. While the web isbeing advanced by the printing cylinder, the pressure roller I II isfrictionally driven through its pressure contact with the moving web.When. cams I6 and 2| elevate the pressure roller, its rotation isstopped by a spring pressed brake 3 (Fig. 6)

A guide and spacing roller I01 (Fig. 5) is also rotatably supported bylinks I00 and I00. The bearings (not shown) for roller I01 are in blockswhich may be clamped indifferent positions along slots I06 in the links,to shift the position of roller I01 for a purpose to be described later.If desired the bearing blocks for roller I01 may each be provided withan index, whileeach of links I00 and I00 is provided with a cooperatingscale, to facilitate alignment of roller I01.

Also pivoted to shaft 8 is a second pair of links I and Ill (Figs. 5, 6,3a and 3b) which are positioned higher than links I00 and I00. As shownin Fig. 6, links I and Ill carry bearings H6 and 6', respectively, whichrotatably support a feed roller shaft II8. A bridge I22 (Fig. 5) tiestogether the free ends of links I and 4', thereby maintaining thealignment of bearings H6 and H6. Adjustably fixed on shaft II9 areyielding feed roller members I20. I20 which engage the edge portions ofthe web as it passes over pressure roller III.

Shaft H9 and pressure roller III are geared togethenby gears H2 and I2I(Fig. 6). So long as the pressure roller is being frictionally driven bythe moving web, feed rollers I20, I20 are, therefore, driven to advancethe web from the bottom of pressure roller III over guide and spacingroller I01, to feed rollers I20, I20. The

advancing of the web from supply roll I to When the cover 3 is forcedclosed by handle 8a,

and latched by latch 31) (Figs. -'1' and 4a) the plungers H8, H8 areengaged by the cover and yieldingly depress yielding feed rollers I20,I20.

When rollers I20, I20 are unstressed they preferably have a diameterlarger than the pitch diameter of gear I2I, while pressure roller -IIIpreferably has approximately the same diameteras the pitch diameter ofgear II2. Thus before plungers H8, H8 are depressed, gears II2 and I2Iloosely mesh with their pitch circles out of contact with one another.ers H8, III! (with resultant yielding of feed rollers I20, I20) bringsthe pitch circles of gears H2 and I2I into contact, or nearly so. LinksI00, I00 and I, IN are provided with abutting projections which arrestthe movement of shaft H9 toward pressure roller III when the pitchcircle of gear I2I has been brought tangent to the pitch circle of gearH2. The final closing movement of the cover causes pressure to betransmitted through these abutting projections to yieldingly press thebottom of the pressure roller III against the web and toward theprinting cylinder I 0. When the pressure roller III (and associatedparts) are elevated by the action of cams I6 and 2|, the springs withinplungers II8, I I8 yield as required to permit the movement.

Depression of plung- Cutting mechanism 0 The cutting mechanism is bestseen in Fig. 5, but parts of it also appear in Figs. 3a and 3b.

Extending across the top 3. and parallel to the axis of the printingcylinder, is an angular bracket I23. A cutting knife I28 is secured tobracket 623 by cap screws I24a; and the knife is made verticallyadjustable by any suitable means, such as slots I2tb (Fig. 3b)'"=-in theknife.

Along the bracket I23 are several boss portions I (one shown) whichaccommodate spring-pressed plungers I26 that support a clamping bar I:of yielding material. Secured to the. bottom of bracket I23 areretainers I2! (one shown) which so limit the downward movement ofplungers 112'? as to establish a predetermined normal spacing betweenthe lower face of clamp- I also a platform II t. The parts are soadjusted When the machine is so operated that thelength (or spacing) ofthe printed impression is less than the peripheral length of theprinting cylinder, bridge ")8 (among other things) is elevated by camsI8 and 2i (Fig. 6) while the printing cylinder turns idly. Hit isdesired to sever the printed web (e. g. for making printed slips orpackage wrappers) the cams I5 and 2I are so arranged that cutting, kniieJ03 will be elevated suficiently to sever the web. In this ele- 5 vatingmovement the web. is first clamped between bridge I08 and clamping barI); then the web is severed by cutting knives I09 and I24. The out slipfalls onto platform IIO, from which it may be removed by hand or bysuitable mechanical means. The position of the line of severance withrespect to the printing is governed by the position of roller I01. This,roller may be shifted along slots I08 as previously described, to varysuch position of the line of severance.

If repeat printing'of the web is desired, without severance into slips(or the like), cams I5 and 2I are so arranged that any elevation ofbridge I08 to permit idle rotation of the printing cylinder isinsumcient to bring the cutting knives .I09 and I24 into shearingengagement.

, Threadin the machine I links I00, 100' and m, m' are swung back toy'ond platform I I0.

the position shown in Figs. 3a and 3b. This moves the cuttingmechanismand rollers III, I01, and I20, away from the printing cylinder. Theleading edge of the web is drawn under roller I4I; over roller I48 andbeyond the printing cylinder I0.

Then the links I00, I 00' are swung down, bringing rollers I 01 and I II to the position shown in Fig. 5.

The leading edge of the web is next drawn around I Drive and electricalcontrols previously described, the machine includes such mechanicalconnections that all driven parts will-be actuated in coordination ifrotation be imparted to sleeve 28 (Fig. 6). In keyed relation to thissleeve is a drive gear, or sprocket, G (see also Fig. 2) to receivedriving power from an electric motor M (Fig. 2) that is mechanicallysuitably connected to the gear G to drive the same. Thus, all elementsof the press are operated by a single driving connection to a source of,motivepower.

For certain uses, I may provide the press with automatic controls whichcause it to stop after each printing cycle; This makes it possible toprint single slips, one at a time as required. Also I may. provide forsemi-automatic operation of the press in printing such slips, theremoval of one printed slip being utilized to initiate the printing ofthe next slip.

Suitably insulated and mounted on the frame standard 2 (Fig. 2) aremoyable contacts H58 and I52 which are spring biased away fromstationary contacts WI and 353 respectively. Pivoted to cover 3 is abell crank lever I55, having a vertical leg adapted to engage contactI52. A spring I501: biases bell crank lever E54 with sufliclent strengthto overcome the bias of contact I52 and'close the same when lever I 55is free to move. A shaft I55 extends across cover 3; and keyed or pinnedto the end of, the shaft is a bell crank lever I58. This lever ismovable to close contact I50, but is biased in the opposite direction byspring I 5811.

Inside of cover 3 (Fig. 5) shaft I55 is provided with a fixed arm I51having a yielding Iriction pad I58. Extension I03 (Figs. 2 and 3b) oflink I00 is adapted to engage the adjustment screw of bell crank leverI54 when roller I05 is moved up by its cam (as previously described) tosuspend the advance of the web.

Assume that the machine is in operation, with the printing cycle inprogress. The electrical contacts are then in the positions shown inFig. 2,

the circuit to the motor M being maintained by relay R. The holdingcircuit for relay R is through connection I50, contact I50, contacts I53and I52, and connection I 8I and switch I84 to the line. At the end ofthe printing cycle roller I05 is raised by cam 2-I (Fig. 6) and printingis suspended. Cam 2| is so arranged'that as the end of the completemachine cycle is approached, roller I05 will be given a final upwardmovement ,beyond that required for severing 01 the web by the cuttingknives I 09and I24 (Fig. 4). In this final movement, extension I03 movesbell crank lever I54 and permits contacts I53, I52 to open. This breaksthe holding circuit of relay R, allowing the relay to open and stoppingdriving motor' M. Thus the press stops with the bridge I08 (Fig.

5) in its uppermost position.

Attached to extension I03 is a latch-engaging hook I82 which movesupwardly with extension I03, allowing latch I53 to advance so that itsupper portion engages the end of the horizontal arm of bell crank leverI58.

With the bridge I08 in its uppermost position, the severed slip on shelfIIO (Fig. 5) is clamped against the friction pad I58. When the slip iswithdrawn, the pad moves with it, rotating shaft I55, thereby movingbell crank lever I58 clockwise as viewed in Fig. 2. This closes contactsI50, I5I which complete the circuit to relay B. so that I 54 to rotateclockwise and close contacts I 52, I53.

This restores the original holding circuit for relay I53 and I52, andconnection I6I. I52, I53 are closed, hook I62 retracts latch I68 andpermits bell crank lever I56 to return to its initial position andcontacts I50, I5I to open.

When the machine cycle is completed, contacts I52, I53 are again openedand the machine stopped. If it is desired to operate the presscontinuously, switch I64 is shifted from contact I65 to contact I66,thus connecting the motor M for continuous operation. For continuousoperation friction pad I58 may be removed, and table IIO. be inclineddownwardly so that the slips will drop onto a conveyor (if slips arebeing printed). If the web is not being severed into slips, the printedweb may be appropriately handled as it leaves the machine.

If desired, the machine may be arranged to operate automatically througha'series of cycles when it is started by extracting a printed slip. Insuch case, the machine would function to automatically print a definitenumber of slips and then stop. In this case bell crank lever I54,instead of being elevated by extension I03 could be elevated by amachine part operating on a reduced gear ratio. For example, if it weredesired to print three slips in a series, bell crank lever I54 could beoperated by a machine part arranged to rise once in three revolutions ofthe printing cylinder. This modification is illustrated in connectionwith Fig. 12.

characteristics and adaptations of the press The. inventor providesaprinting press which can be readily adapted for various types ofoperations, and for various industrial applications.

I The parts are simply constructed and compactly impressions ofdifferent lengths may be made from a single printing cylinder. The inksupply may be so well sealed that the machine can stand idle overconsiderable periods of time and remain always ready for immediate use.This is very desirable for the printing of individual slips. For suchuse the engraving on the printing cylinder is so arranged that themachine stops with all of the engraving within the sealed ink housing.This means that in stopped position, the exposed portion of the printingcylinder (the short are in Fig. 5 between the doctor knife 26 andsealing strip 83), is a plain cylindrical surface that has been wipedclean by the doctor knife. Thus, no ink coated parts are left exposed.

Several different prints may be selectively made from a single cylinderby providing the engravings therefor on one cylinder and selectivelyprinting from that cylinder. The selection may be made by substitutingdifierent sets of cams I6 and 2| (Fig. 5) which have their inactivesectors in different angular positions with respect to the printingcylinder I0. To select any one engraving for printing it is onlynecessary to install a set of cams I6 and 2I having active sectorscovering that are of the printing cylinder which is to be renderedinactive or non-printing. 'Such selection may similarly be made byarranging the cams I6 and 2I to be rotatively adjustable with respect tothe printing cylinder. In this connection, it should be notedthat (withsufliciently rigid construction), the web is lifted from the printingcylinder if an active sector of either cam I6 or 2I is in engagementwith its roller (I05 or I05). Thus, cam I6 may be made to render theprinting cylinder inactive throughout one sector, while cam 2I continuesthe printing cylinder inactivity throughout a succeeding sector.

By the use of different sets of cams I6 and 2|, 9. wide variety ofoperating characteristics can be achieved. The sectors of activity ofthe cams may be varied in length, as well as angular location. Also theamount and rate of life imparted to roller I05 and I05 may be varied. Ialso contemplate that the same results 'can be achieved by replaceableand/ or adjustable segments which actuate the rollers I05 and I05 andwhich can be shifted to vary the angle of the active sectors of thecams, as well as the rotative locations of the sectors and the amountand rate of lift imparted to rollers I05 and I05.

These various modifications and adaptations of the press are illustrateddiagrammatically in Figs. 12, 13, and 14 of the drawings.

Figs. 12, 13 11111114 -printing, the web passes between feed rollers I15and I16, and is delivered between the blades 1" and I18 of cuttingshears. Between the printing cylinder I12 and feed rollers I15, I16, theweb may pass over two rollers I19 and I80, which are so arranged as tovary the distance which the web must travel in moving from the printingcylinder to the cutting shears. The axis of roller I18 is stationary,but roller I80'is rotatably mounted on a swinging frame I8! which ispivoted coaxially with roller I10. By swinging the frame I8I and lockingit to a sector l82 by set screw I84, the adjustment is made to vary thelength of the travel of the web between the printing cylinder I12 andthe cutting shears. This adjustment permits severing of the web at anyselected point in the printihg cylinder impression.

r The various driven elements of the press are mechanically connectedtogether to be actuated from a single source of power indicated as anelectric motor I85. To permit a clear-and convenient diagrammaticshowing of the operating relationships of the diiIerent parts, bevelledgears have been indicated in Fig. 12 of the drawings. However, in actualmachine construction, it is preferable to so arrange the parts as topermit the use of spur gears or the like. As shown in the drawings, themotor drives shafts IBM and 4861), which are in effect a single shaft.By means of shaft I81, power is transmitted to the printing cylinder I12to rotate it at predetermined speed, which may be the speed ofthe.motor..

' change coupling I90, shaft I9I, variable speed mechanism I92, andshaft I93, which is eared to the drive shaft. At least one of feedrollers transmitted from the drive shaft I86b through shaft I94,variable speed mechanism I95, and shaft I96. The movable blade I11 ofthe web cutting shears is adapted to be actuated by cam;

I91, which is also driven in coordination with the printing cylinderI12. The power for driving the cam I91 is derived-from the power shaftI881) through shaft I98, variable speed mechanism I99, shaft 200,phase-changing coupling 2M, and shaft 292.

Pressure roller I14 is rotatably mounted on a pivoted frame 203, whichis adapted to be rocked by cam I 88. When the inactive (or low) zone ofcam I88 is in contact with roller 206, the pressure roller I14 holds theweb I95 in contact with the printing cylinder I12. Accordingly,throughout the inactive zone ofcam I89 the web is printed with anydesign which passes the printing zone of the printing cylinder I12.However, (during the active (or high) zone of cam I88, the pressureroller I14 is elevated, with the result that the web is out of contactwith the printing cylinder and no printing play takes ing cylinder, itis, nevertheless, advanced. by feed rollers I15, I16, which may bedriven at the same peripheral speed as the speed of the printingcylinder I12. By means of variable speed mechanism I95, the peripheralspeed of feed rollers I15, I18 may be adjusted to conform with theperipheral speed of different sizes of printing cylinders I12 which maybe inserted into the machine. Variable speed mechanism I99 provides anadjustment so that the cutting shears may be set to operate at anydesired frequehcy in relation to the cyclic operation of the machinejfor example, the web may be severed into lengths corresponding to one,less than one, or more than one revolution of printing cylinder I12.Phase-change coupling 20I provides a means whereby the point ofseverance may be located on the web, though a similar location may beeffected by adjusting the position of roller I80. Variable speedmechanism I92 permits the control cam I88 to be rotated at variouscyclic rates in relation to the rotation of the printing cylinder I12.Also phase-change coupling I90 permits any inactive sector of cam I08 tobe located in coordination with any selected peripheral zone of theprinting cylinder I12.

The press may be so controlled that upon being set in operation, itautomatically stops after one or more printing cycles (eag. afterprinting and cutting one or more slips). This -control may be the sameas that previously described in connection with Figs. 2 and 5; and it isso illustrated in Fig. 12.

A cam 300 is shown as driven from drive shaft I86a through shaft 20I,variable speed mechanism 302,- shaft 303, phase change coupling 304,shaft 305, and shaft 306. Thus cam 300 may be set at any phase withrespect to the printing cylinder; and for each revolution of theprinting cylinder, this cam may make one, more than one, or less than.one revolution. Once each revolution, cam 300 elevates member 3I0 andstops the press. The starting and stopping of the press is effected bycontrolling motor I 85 with a mechanical and electrical systemassociated with member 3I0. In Fig. 12 such mechanical and electricalsystem is identical with that shown in Fig. 2 and previously described;and in Fig. 12 the same reference characters are used to designate therespective parts duplicated .from Fig. 2.

Fig. 13 shows more clearly the diagrammatic phase-change couplings I90,20I, and 301. The drivingshaft of the coupling is keyed to a collar 205and the driven shaft is keyed to an abutting collar 206. Set screw 201secures collar 205 to the driven shaft for the transmission of power. Byloosening the set screw, the driven shaft can be rotated with respect tothe driving shaft to change the operating phase of the part actuatedfrom the driven shaft. adjustment, the contiguous ends of collars 205and 206 may be provided with a scale' and cooperating index as shown inthe drawings.

As referred to in connection with Figs. 1 to 11 of the drawings, thecontrol cam for elevating and depressing the pressure roller may 'be'ofa suitable adjustable type. One of such type'of adjustable cam is shownin Fig. 14. Afflxed to the cam shaft is a cam element 2I0 having anactive (or high) zone which extends clockwise from the line .9 to theline t. Rotatably mounted on the cam shaft is a replaceable andadjustable cam element 2H having an active zone extending clockwise fromthe line u to the line 12. Attached to cam shaft 2I2 is a collar 2I3which holds the adjustable cam element 2 against the main canf element2I0. A bolt 208 passes through an arcuate slot 209 in the adjustable camelement and is threaded into the main cam element. The cam roller :2:has a face wide enough to engage both the edge. of the main cam element2I0 and the adjustable cam element 2. By setting the adjustable camelement to effect various degrees of overlap of the active zones ofelements 2I0 and" 2! I, the eflective active and inactive zones of thecam are varied.

Figs. 15 to 23 These figures show a few of the many printing effectsthat may be produced by a press such as illustrated in Fig. 12 of thedrawings. The webs shown in these figures represent the web after it hasbeen acted uponby the printing cylinder. For the sake of illustration,the printing cylinder is assumed to be engraved with either a squaredesign, or a circular design, or both. Each design printed on the web isillustrated in full lines. Where a design on the printing cylinderpasses the printing zone without being printed (due to pressure rollerI14, Fig. 12 being elevated), the location of such design with respectto the web is indicated in dot-dash lines in Figs. 15 to 23.

For each of Figs. 15 to 23 the printing cylinder is the same size andcam I88 is the same, though rotated at various speeds relative to theprinting cylinder. In each of these figures, one printing cylinderrevolution corresponds to the web length between consecutive of thevertical dot-dash lines. However, the location of these lines hasnothing to do with the beginning and end of the printed slips (if suchare being made) as the Web may be so severed as to place the design onany selected part of the slip.

For Fig. 15, the control cam (I89 in Fig. 12) rotates synchronously withthe printing cylinder which has one square engraving. The cam action Toaid in making the graph I88a indicates that the web is in contactintervals Z2. Accordingly, web I45a is printed as shown, with onerectangle per printing cylinder revolution; and the length of theprinting cylinder impression is equal to arrow 400a, which is theperipheral length of the printing cylinder.

lution of the printing cylinder, so that the printing cylinderimpression is twice the peripheral length of the printing cylinder, asindicated by the length of arrow 40Gb.

Fig. 17 shows the effect of reducing the angular speed of the cam I88 toone third that of the printing cylinder as indicated by graph I880. Thedesign is printed on web I45c only once every third revolution of theprinting cylinder; and the printing cylinder impression has a lengthequal to arrow 4000.

In Fig. 18 the web I45d is printed the same as the web in Fig. 17. Theprinting cylinder impression has the same length as indicated-by arrow490d. However, the result is obtained by rotating the control cam attwo-thirds the angular speed of the printing'cylinder, the cam actionbeing indicated by graph I88d.

For Figures 19 to 23, the printing cylinder has both square and circularengravings. in continuous contact with the web, it would print the webI456 shown in Fig. l9,'the length of the printing cylinder impressionbeing indicatedby arrow 400a.

If this two design cylinder is used with the cam I88 operating as forFig. 15, it prints a web I45f as shown in Fig. 20. This is the same asweb 145a, the circular design being blanked out by the cam actionindicated by graph I88f. The length of the impression is that of arrow400i.

By cutting the cam speed in half as indicated by graph I88g, Fig. 21,the web I459 is printed. This is the same as web I45b, Fig. 16, the.length of the printing cylinder impression being that of arrow 4009.

For Fig. 22, the cam is operated synchronously with the printingcylinder as indicated by graph IBBh. However, the phase of the cam isshifted 180 degrees from the condition indicated in Fig. 20. Thus, theweb I45h is printed 'with the circular design instead of the squaredesign. Arrow 40071. indicates the length of the impression, which gearsets. Thus even with a cam, speed near to correlating the angulars'peeds of the control cam and printing cylinders. These may be relatedafter the manner of ratios used in hunting tooth the cylinder speed, thelength of the impression may be made several (or even many) times theperipheral length of the printing cylinder. Also, the same cylinder mayhave various designs which may be printed selectively or in variouschosen combinations.

In compliance with the patent statutes, I have disclosed the best formsin which I have con- Operated.

templated applying my invention. However, it will be understood that thedisclosures are illustrative and not limiting.

What I claim is:

1. In a rotary intaglio printing press including a printing cylinder anda fountain housing having means for wiping the cylinder to condition itfor printing, the improvement which comprises: an ink reservoir, apivotally mounted support for the wiping means, and a sealing element,

all three included in the fountain housing, saidsupport having a curvedface extending lengthwise of the printing cylinder, and said sealingelement being in sealing engagement with said curved face and also insealing engagement with a wall ofv said ink reservoir.

2. In a rotary intaglio printing press adapted to accommodate printingcylinders of different diameters and including a fountain housing havingmeans for wiping the cylinder to condition it for printing, theimprovement which comprises: an ink reservoir, a support for the wipingmeans pivotally mounted for cooperation with different sizes of printingcylinders, and a sealing element, said reservoir, support, and sealingelement being included in the fountain housing, said support having acurved face concentric with the pivotal axis of the support, and saidsealing element being attached to a side wall of said reservoir andmaking slidingsealing engagement with saidcurved face, whereby said sidewall is in sealed connection with said support when the support.

.reciprocate the doctor knife lengthwise oi the printing cylinder; and anon-reciprocatory curving'member deflecting the wiping edge of thedoctor knife, the direction of deflection being away from a planetangent to said cylinder and toward aplane radial to said cylind-enandthe ends of the curving member being in engagement with said framestandards to aid in sealing the fountain housing.

4. A rotary intaglio printing press comprising: I

a printing cylinder, a support pivoted on an axis parallel to the axisof said cylinder; a doctor knife reciprooably supported by said support,adjustment means operable to swing said support on its pivotal axis andthereby move said doctor knife out of and into wiping engagement withsaid cylinder, and means to yieldingly bias said doctor knife intowiping engagement with said cylinder whereby the wiping pressure ismaintained as the wiping edge of the doctor knife wears bac'k.

' 5. In a rotary intaglio printing press adapted to accommodate printingcylinders of different diameters, the improvement which comprises: adoctor knife for wiping the printing cylinder; a support for. the doctorknife pivoted on an axis parallel to the axis of the printing cylinder;and mechanism for both ro-tatively adjusting said support to locate thedoctor knife for engagement'with printing cylinders of different sizesand for rotatively biasing the support to estab lish wiping pressure,said mechanism comprising a first arm pivoted coaxially with saidsupport,- means to secure said arm in different angular positions, asecond arm also pivoted coaxially with said support, means toreleaseably lock said two arms together, a third arm fixedly secured tosaid support, and spring means to rotatively bias said third armwithrespect to said second diameters, the improvement which comprises: a

doctor knife for wiping the printing cylinder; a support for the doctorknife pivoted on an axis parallel to the axis of the printing cylinder;and mechanism for both rotatively adjusting said support to locate thedoctor knife for engagement with printing cylinders of different sizesand for rotatively biasing the support to establish wiping pressure,said mechanism comprising a pressure-receiving arm connected with saidsupport to transmit rotative movement and pressLue to the support,spring means engaging said pressure-receiving arm to rotatively bias thesame, means to sustain the reactive force of said spring means, andmeans to fix said sustaining means in different angular positions withrespect to rotative position about the axis of said doctor knifesupport.

7. For a rotary intaglio printing press, the combination of: a doctorknife support having a longitudinal bore and a guide slot extendingoutwardly from the bore, a reciprocatory shaft positioned in said bore,and a doctor ,knife holder having a longitudinally extending key portionfitted into said slot and attached to said shaft.

8. In a rotary intaglio printing press, the combination of a pivotallymounted doctor knife support having a longitudinal bore and a guide slotextending outwardly from the borepa reciprocatory shaft positioned insaid bore and extending beyond at leastone end of the bore, and a doctorknife holder having a longitudinally extending key portion slidablyfitted into said slot and attached to said shaft.

9. In a rotary intaglio printing press, the combination of a pivotallymounted doctor knife support having a longitudinal bore concentric withits pivot and .also having a guide slot extending outwardly from thebore, a reciprocatory shaft positioned in said bore and extending beyondat least one end of the bore, a doctor knife holder having alongitudinally extending key portion slidably fitted into said slot andattached to said shaft, and means in engagement with the extendingportion of said shaft to reciprocate said shaft and thereby reciprocatesaid doctor knife holder.

10. In a rotary intaglio printing press adapted to accommodate printingcylinders of different diameters and including a fountain housing havingmeans for wiping thecylinder to condition it for printing, theimprovement which comprises: an ink reservoir, a pivotally mountedsupport, a doctor knife supported by the support, and a sealing element,said reservoir, support, doctor knife and sealing element being allincluded in the fountain housing, means to place said support indifferent pivotal positions to locate said doctor knife for cooperationwith printing cylinders of different diameters, said sealing elementbeing effective to seal said support to a wall of said reservoir whenthe support is in the different pivotal positions, and means toreciprocate said doctor knife, said reciprocating means including areciprocatory element concentric with the pivotal axis of said support.

11. A rotary intaglio printing press comprising:

inking manifold movable into different pivotal,-

positions to cooperate with printing cylinders of different diameters,said manifold having a pas sage through its pivot and having anelongated discharge port in communication with said passage, saiddischarge port being adjacent to the printing cylinder, and pump andconduit means to'convey ink from-said reservoir to said manifold throughsaid passage in saidpivot.

13. In a rotary intaglio printing press including a printing cylinderand a fountain housing having means for inking said: cylinder, theimprovement which. comprises, an ink reservoir, a pivotally mountedinking manifold, and a sealing element, all three included in thefountain hous ing, said manifold having a curved face extendinglengthwise ofthe printing cylinder, and said sealing element being insealing engagement with said curved face and also in sealing engagementwith a wall of said ink reservoir.

14. A rotary intaglio printing press comprising: a printing cylinder,and a fountain housing, said housing including devices on opposite sidesof the printing cylinder, one of said devices being an inking manifoldand the other being a doctor knife support, said fountain housing alsoincluding an ink reservoir beneath the'printing cylinder, and sealingmeans, the ink reservoir being pivoted for movement from operatingposition to a lowered cleaning position, and said sealing meansincluding a sealing element attached to one wall of the ink reservoirand operable to make sealing engagement with one of said devices whenthe reservoir is in operating position.

15. In a rotary intaglio printing press including a frame, a printingcylinder, and means for inking the cylinder, the improvement whichcomprises: an inkv reservoir pivoted to the frame for movement fromoperating position to a lowered cleaning position, the reservoir havinga prrt passing through its pivot; and pump and conduit means connectedto withdraw ink through said port and deliverit to the printingcylinder.

16. A rotary intaglio printing press comprising: a printing cylinder,anda fountain housing, said housing including an inking manifold on oneside of the printing cylinder, a doctor knife support-on theopposite,side of the printing cylinder, an ink reservoir beneath theprinting cylinder, and sealing means, the ink reservoir being movablefrom operating position to a lowered secured to the manifold alongsideof said port and adapted to project into sealing engagement with thesurface of said cylinder, means to move the discharge port ofsaidmaifold toward and

